Many are already familiar with potassium and it's effect in lowering blood pressure. However, recent studies have confirmed another nutrient that also helps lower blood pressure- Vitamin C. This excerpt from NHD Magazine says the following:

"…The second paper was a systematic review which pooled findings from 29 RCTs to investigate whether vitamin C supplementation can help to lower blood pressure. The average dose of vitamin C given was 500mg daily, with most studies being conducted for a period of eight weeks. The study sample sizes varied from 20 to 120 people. The results from shorter-term studies revealed that vitamin C supplements helped to reduce both systolic and diastolic blood pressure (by around 3.84 and 1.48mmHg respectively). Evidence from longer-term trials was lacking and these are now needed to establish whether the benefits are maintained. For more information see: Thies F et al (2012). American Journal of Clinical Nutrition Vol. 5, pg: 1013-22 and Stephen P et al (2012). American Journal of Clinical Nutrition Vol.95, pg: 1079-88."